Emery has had to use Granit Xhaka on the left side of his defence in recent weeks while both Monreal and Kolasinac have been in the treatment room nursing hamstring injuries.

But the prospect of the Switzerland international facing Mo Salah this weekend at the Emirates has had fans fearing the worse, so the timely return of Kolasinac will be a big boost to Arsenal as they look to end Liverpool’s unbeaten start to the Premier League season.

The other big decision facing Emery is at right-back. Hector Bellerin was forced off with a thigh injury against Crystal Palace last weekend but he did train on Friday, so Emery has to decide whether to risk the Spaniard or play the experienced Stephan Lichtsteiner.

Sokratis is expected to miss out with an ankle problem so Rob Holding and Shkodran Mustafi will continue in the heart of defence.

With Kolasinac expected to start , Xhaka will be able to move back into the midfield to partner Lucas Torreira in front of the back four. Mesut Ozil will then play in the advanced No.10 role supporting the front three.

Henrikh Mkhitaryan is pushing for a start but Emery is expected to stick with an attack of Pierre-Emerick Aubameyang, Alex Iwobi and Alexandre Lacazette.